Guida
The Shinhara・Nuyama Kofun Cluster is a nationally designated historic site located in Fukuchi City, Fukuoka Prefecture. This site is characterized by a dense concentration of burial mounds (kofun) constructed between the 5th and 6th centuries. Visitors can observe a diverse range of shapes, including keyhole-shaped (zenpokoen-fun), square-shaped (hoen-fun), and round (enfun) mounds. This cluster boasts a high density and a wide variety of scales and forms, making it one of the most significant archaeological sites in the region. Because the mounds are preserved alongside the natural topography, they serve as a vital historical record of ancient social structures and regional exchange.
These mounds were primarily built during the 5th and 6th centuries. For instance, Mound No. 22 is believed to be a chieftain's tomb of the Munakata clan from the 5th century. Historically, this area was an inlet, suggesting that the region served as a port for vessels used in ancient maritime-based diplomacy and trade. The shapes and placement of the mounds reflect the social hierarchy and the relationship with the Yamato dynasty, as well as interactions with other regions. Since 1975, various archaeological excavations have been conducted during land development and agricultural improvements to better understand this ancient civilization.
The site features several notable mounds with distinct characteristics:
As this is an open-air historical site, there are no specific opening hours or seasonal restrictions. However, for the best experience in observing the shapes and topographical details of the mounds, visiting during daylight hours is highly recommended. The site is accessible year-round.
This site is an excellent place for observing the physical forms and arrangements of ancient burial structures. By comparing the different shapes—keyhole, square, and round—visitors can learn about ancient engineering techniques and the social structures of the time. The way the mounds integrate with the natural landscape provides a deep sense of the ancient geography.
The area surrounding the cluster has a fascinating history of land reclamation. Geomorphological studies suggest the coastline was much closer to the site 5,000 years ago, providing clues to the ancient maritime environment of the region.